Picosecond soft-x-ray source from subpicosecond laser-produced plasmas

J. Workman, A. Maksimchuk, X. Liu, U. Ellenberger, J. S. Coe, C. Y. Chien, D. Umstadter

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

Short-pulse high-intensity laser-plasma interactions are investigated experimentally with temporally and spectrally resolved soft-x-ray diagnostics. We demonstrate that, by adjustments of the incident laser flux, the pulse width of the laser-produced x rays emitted from solid targets may be varied to as short as the picosecond time scale. Bright, picosecond, broadband emission characteristic of a short-scale-length high-density plasma is produced only when a high laser contrast (1010) is used. The results are found to be in qualitative agreement with both the predictions of a simple model of radiation from a collisonally dominated atomic system and the results obtained from a numerical simulation.

Original languageEnglish (US)
Pages (from-to)125-131
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Volume13
Issue number1
DOIs
StatePublished - Jan 1996

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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